Poor customer care

I canceled a data contact on 2020-01-31,monthly subscription R1006. 00. Line NR were ***. On 2020-03-04 I called again because I were billed again for the same line. Got a reference NR *** and were informed that the line has bee canceled and were promised a refund since I did not use the data since I first canceled the line. On 2020-04-07 I received my statement and yet again I were billed for the same line. Called *** again. Again I were informed that I wil get a refund. No ref NR given. Only the person name and supervisor name. Nombula and supervisor name Adriaan Van Zyl. On 2020-05-08 I called again because I were not refunded as promised. Were again promised a refund for March and April 2020. Reference NR A2-K2DT-T1MY7. On 2020-06-08 received no refund. Called again customer care. Spoke to Suzawaka Nblovu of team Emirates. Were promised that customer care wil get back to me. Till today nobody came back to me to resolve the issue. I have another contract coming up for renewal. Don't think I will renew.